US4907620A - Proportioner pumping system - Google Patents
Proportioner pumping system Download PDFInfo
- Publication number
- US4907620A US4907620A US07/243,814 US24381488A US4907620A US 4907620 A US4907620 A US 4907620A US 24381488 A US24381488 A US 24381488A US 4907620 A US4907620 A US 4907620A
- Authority
- US
- United States
- Prior art keywords
- fluid
- conduit
- pumping system
- control valve
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85978—With pump
- Y10T137/86107—Multiple inlet with multiple outlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87619—With selectively operated flow control means in inlet
- Y10T137/87627—Flow control means is located in aspirated fluid inlet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87652—With means to promote mixing or combining of plural fluids
- Y10T137/8766—With selectively operated flow control means
- Y10T137/87668—Single actuator operates plural flow control means
Definitions
- This invention relates to pumping systems. More particularly, this invention relates to proportioner pumping systems. Even more particularly, this invention relates to pumping systems including proportioners for adding one fluid component to another fluid component.
- Pumping systems are used in many application and in many industries to move fluids from one location to another. Often it is necessary to add one or more special fluids to a base fluid which is being pumped. For example, in fire-fighting equipment it is often necessary and desirable to add a fire retardant chemical to a water stream which is being used to subdue a fire. There are many types of fire retardant chemicals used for this purpose. Typically they create a fire retardant foam when mixed with water and forced through a discharge nozzle.
- valves typically, conventional pumping equipment used for adding a fire-retardant chemical to the water involves the use of three individual valves.
- One valve controls water flow, another valve controls chemical addition, and yet another valve controls flushing of the chemical supply line.
- This plurality of valves leaves much room for operator error. Also, it requires separate operation of the valves at the necessary times in order to obtain the desired addition of chemical to the water. This may not be convenient, particularly where time is of the essence. Further, after the chemical has been added to the water it is necessary to operate the valves in such a manner that the chemical supply line can be properly flushed. Operation of valves also results in changes in the water pressure at the discharge nozzle. This is undesirable.
- a unique pumping system for pumping a first fluid (e.g., water) and selectively and controllably adding a second fluid (e.g., fire retardant chemical, fertilizer, pesticide, etc.) to the first fluid.
- a first fluid e.g., water
- a second fluid e.g., fire retardant chemical, fertilizer, pesticide, etc.
- a discharge manifold including an inlet opening and at least one discharge opening
- the control valve is movable between a first position in which the second source of fluid is operatively connected to the feed conduit and a second position in which the flush conduit is operatively connected to the feed conduit.
- first position in which the second source of fluid is operatively connected to the feed conduit
- second position in which the flush conduit is operatively connected to the feed conduit.
- the pressure of the fluid being discharged through the discharge manifold does not change when the second fluid is added or when the flow of the second fluid is stopped.
- the pumping system maintains constant exit nozzle pressure without adjustment of the pump speed or the discharge valve setting.
- the pumping system of the invention effectively controls the addition of a second fluid to the first fluid in a manner such that operator error is minimized. Only one control valve need be operated in order to control addition of the second fluid to the first fluid.
- system of the invention automatically flushes the second fluid from the lines when the control valve is closed to the second fluid. No separate flushing or disassembly of the system is required.
- the discharge manifold there are several discharge openings in the discharge manifold and a hose or other exit line is attached to each discharge opening.
- a separate valve controls flow through each hose.
- the eductor conduit it is also preferable for the eductor conduit to include a venturi to assist in drawing the second fluid into the eductor conduit when the control valve is opened.
- FIG. 1 is a schematic of one embodiment of pumping system of the invention with a control valve set for adding a chemical to another fluid being pumped;
- FIG. 2 is a fragmentary schematic of the embodiment of the pumping system shown in FIG. 1 with the control valve set for flushing the chemical supply line while pumping the main fluid.
- a pump 12 is adapted to draw fluid (e.g., water) in through inlet conduit 15 and supply line 14 and then push it through conduit 16 to discharge manifold 20.
- fluid e.g., water
- the discharge manifold 20 preferably includes a plurality of discharge openings. Preferably flow of fluid through each discharge opening may be adjusted and controlled by means of a valve 22. Operably connected to each discharge opening is a flexible hose 24 which includes a nozzle 26 on its outer end, as illustrated.
- a chemical to be selectively added to the water being pumped may be contained in a supply tank 30.
- a feed conduit 32 including a check valve 33, leads from the tank 30 to control valve 40, as shown.
- Another feed conduit 34 extends between valve 40 and venturi eductor 44.
- Conduit 34 preferably includes a metering valve 36 to meter the rate at which the chemical can be added to the water being fed into conduit 15.
- Eductor conduit 42 is connected between the discharge manifold and the eductor 44.
- Conduit 46 leads from the exit end of the eductor to the pump inlet conduit 15.
- Flush line 28 is connected between the discharge manifold 20 and the control valve 40. Water enters the flush line through the manifold.
- the control valve 40 is movable between two positions. When valve 40 is in one position (as shown in FIG. 1) the conduit 32 communicates with conduit 34 so that chemical can be drawn out of tank 30 and fed into inlet conduit 15 of pump 12. The flush line is closed off. Water passing through eductor conduit 42, venturi 44, and conduit 46 draws the chemical through feed conduits 34 and 32 so that the chemical is added to and mixed with the water, as illustrated.
- valve 40 When the control valve 40 is moved to its other position (shown in FIG. 2) the conduit 32 is closed off so that chemical cannot pass from tank 30 to pump 12. Instead, valve 40 allows a small amount of fluid being pumped to pass out of the discharge manifold 20 into flush line 28 and then into conduit 34. This flushes all chemical out of the feed conduit 34.
- Another major advantage of the pumping system of the invention is that the chemical supply line is automatically flushed when the addition of chemical is stopped. Still another advantage of this system is that the suction side of the pump is jetted with discharge pressure, as illustrated, to increase pump performance since the water jet pushes the suction water into the pump.
- the arrows indicate the direction of flow of the fluid such as water.
- the source of the water or other fluid may be a tank, hydrant, lake, pond, or another pump.
- any size pump may be used.
- the pump may be powered electrically, hydraulically, mechanically, etc.
- the number and size of the discharge openings in the manifold may also vary.
- FIG. 1 herein illustrates the use of flexible hoses connected to the discharge openings, other arrangements could also be used.
- the pumping system may be used in various industries (e.g., fire fighting equipment; agricultural applications; industrial applications; etc.).
- industries e.g., fire fighting equipment; agricultural applications; industrial applications; etc.
- the drawings illustrate the use of a single tank or source for chemical additive, the system of this invention is also useful when there are a plurality of chemical additives in separate tanks.
- a separate feed conduit extends from each tank to the inlet conduit for the pump, and a separate control valve 40 may be used in each feed conduit. Then any one or more of the chemicals may be added to the main fluid in the pump, as desired.
- system may be produced and sold without the pump included so that the customer may select any pump which may be necessary or desired for a particular application. Then the pump can be connected to the system in the manner illustrated herein.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/243,814 US4907620A (en) | 1988-09-13 | 1988-09-13 | Proportioner pumping system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/243,814 US4907620A (en) | 1988-09-13 | 1988-09-13 | Proportioner pumping system |
Publications (1)
Publication Number | Publication Date |
---|---|
US4907620A true US4907620A (en) | 1990-03-13 |
Family
ID=22920240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/243,814 Expired - Fee Related US4907620A (en) | 1988-09-13 | 1988-09-13 | Proportioner pumping system |
Country Status (1)
Country | Link |
---|---|
US (1) | US4907620A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5221189A (en) * | 1992-08-10 | 1993-06-22 | Firetrol, Inc. | Soft start fire pump controller |
WO1998040307A2 (en) * | 1997-03-10 | 1998-09-17 | Innovative Medical Services | Method and apparatus for dispensing fluids |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3075749A (en) * | 1960-05-25 | 1963-01-29 | Hoge Warren Zimmermann Co | System for producing a continuous supply of air generated foam |
US3806037A (en) * | 1972-12-01 | 1974-04-23 | Hanson Equipment Co | Selective fluid discharge system and control valve means therefor |
US4645009A (en) * | 1984-05-18 | 1987-02-24 | Konrad Rosenbauer Kg | Method and means for producing and dispensing extinguishing fluids |
-
1988
- 1988-09-13 US US07/243,814 patent/US4907620A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3075749A (en) * | 1960-05-25 | 1963-01-29 | Hoge Warren Zimmermann Co | System for producing a continuous supply of air generated foam |
US3806037A (en) * | 1972-12-01 | 1974-04-23 | Hanson Equipment Co | Selective fluid discharge system and control valve means therefor |
US4645009A (en) * | 1984-05-18 | 1987-02-24 | Konrad Rosenbauer Kg | Method and means for producing and dispensing extinguishing fluids |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5221189A (en) * | 1992-08-10 | 1993-06-22 | Firetrol, Inc. | Soft start fire pump controller |
WO1998040307A2 (en) * | 1997-03-10 | 1998-09-17 | Innovative Medical Services | Method and apparatus for dispensing fluids |
WO1998040307A3 (en) * | 1997-03-10 | 1998-10-29 | Innovative Medical Services | Method and apparatus for dispensing fluids |
US6101452A (en) * | 1997-03-10 | 2000-08-08 | Innovative Medical Services | Method and apparatus for dispensing fluids |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BECKER FIRE EQUIPMENT COMPANY, INC., 1717 E. YELLO Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BECKER, RICHARD W.;REEL/FRAME:004946/0556 Effective date: 19880908 Owner name: BECKER FIRE EQUIPMENT COMPANY, INC., A WYOMING COR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BECKER, RICHARD W.;REEL/FRAME:004946/0556 Effective date: 19880908 |
|
AS | Assignment |
Owner name: BECKER ENTERPRISES, A WY PARTNERSHIP, WYOMING Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BECKER FIRE EQUIPMENT COMANY, INC.;REEL/FRAME:005070/0196 Effective date: 19890504 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 19980318 |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |